# A - Kyu in AtCoder

late_table = [
    [400, 8],
    [600, 7],
    [800, 6],
    [1000, 5],
    [1200, 4],
    [1400, 3],
    [1600, 2],
    [1800, 1]
]


def kyu(late):
    for i in late_table:
        if late < i[0]:
            return i[1] + 1
    return 1


if __name__ == "__main__":
    late = int(input())
    print(kyu(late)) late_table = [
    [400, 8],
    [600, 7],
    [800, 6],
    [1000, 5],
    [1200, 4],
    [1400, 3],
    [1600, 2],
    [1800, 1]
] late_table [
    [400, 8],
    [600, 7],
    [800, 6],
    [1000, 5],
    [1200, 4],
    [1400, 3],
    [1600, 2],
    [1800, 1]
] [400, 8] 400 8 [600, 7] 600 7 [800, 6] 800 6 [1000, 5] 1000 5 [1200, 4] 1200 4 [1400, 3] 1400 3 [1600, 2] 1600 2 [1800, 1] 1800 1 def kyu(late):
    for i in late_table:
        if late < i[0]:
            return i[1] + 1
    return 1 kyu for i in late_table:
        if late < i[0]:
            return i[1] + 1
     i late_table if late < i[0]:
            return i[1] + 1
     late < i[0] late i[0] i 0 return i[1] + 1 i[1] + 1 i[1] i 1 1 return 1 1 late late if __name__ == "__main__":
    late = int(input())
    print(kyu(late)) __name__ == "__main__" __name__ "__main__" late = int(input()) late int(input()) int input() input print(kyu(late)) print kyu(late) kyu late def kyu(late):
    for i in late_table:
        if late < i[0]:
            return i[1] + 1
    return 1 def kyu(late):
    for i in late_table:
        if late < i[0]:
            return i[1] + 1
    return 1 kyu late = int(input()) int(input()) late late_table = [
    [400, 8],
    [600, 7],
    [800, 6],
    [1000, 5],
    [1200, 4],
    [1400, 3],
    [1600, 2],
    [1800, 1]
] [
    [400, 8],
    [600, 7],
    [800, 6],
    [1000, 5],
    [1200, 4],
    [1400, 3],
    [1600, 2],
    [1800, 1]
] late_table
# A - Kyu in AtCoder

late_table = [
    [400, 8],
    [600, 7],
    [800, 6],
    [1000, 5],
    [1200, 4],
    [1400, 3],
    [1600, 2],
    [1800, 1]
]


def kyu(late):
    for i in late_table:
        if late < i[0]:
            return i[1] + 1
    return 1


if __name__ == "__main__":
    late = int(input())
    print(kyu(late))
